toxi.geom
Class Spline2D

This is a generic 3D B-Spline class for curves of arbitrary length, control
handles and patches are created and joined automatically as described here:
ibiblio.org/e-notes/
Splines/Bint.htm

Thanks to a bug report by Aaron Meyers (http://universaloscillation.com) the
computeVertices(int) method has a slightly changed behaviour
from version 0014 onwards. In earlier versions erroneous duplicate points
would be added near each given control point, which lead to various weird
results.

The new behaviour of the curve interpolation/computation is described in the
docs for the computeVertices(int) method below.